Overview

The 2DX fault indicator is a newly developed high-tech product suitable for real-time monitoring of cable short circuits and single-phase grounding faults in cable branch boxes, ring network switchgear, and other applications. The indicator embeds an advanced microchip, offering advantages such as intelligence and low power consumption. When a line fault occurs, personnel can quickly identify the fault section and pinpoint the fault location using the indicator's alarm indication. The indicator automatically recognizes sudden current changes without requiring a pre-set fault current value. It detects and processes sudden current changes, memorizes the fault status, and offers two fault display modes: a ticking indicator and an indicator light. During the automatic reset time, the ticking indicator turns red, and the indicator light flashes continuously. The indicator automatically resets after 24 hours or one minute after normal power restoration following fault resolution.

This indicator provides the best solution for troubleshooting and is of great significance for improving work efficiency, shortening power outage time, and quickly restoring power supply.

Technical parameters

◆Applicable voltage level: U≥6kV

◆Applicable conductor current: I≥10A

◆Applicable wire diameter: 5sd≤45mm

◆Action response time: 0.03≤t≤3s

◆Number of repetitions: ≥5000

◆Static power: E≤10Uw

◆Display method: Simultaneous display of flip-up sign and illumination. Range of 500 meters and 360°.

◆ Fault reset time: 6, 12, 24, 36 (h) selectable

◆Long-term withstand current: 600A

◆Short-time withstand current: 30KA (3S)

◆ Current sampling range: 0~800A

◆ Current sampling accuracy: ±5%

Usage Environment

◆Working altitude: ≤3000m

◆Ambient temperature range: -30℃ to +75℃, maximum temperature difference: 25℃

◆Ambient humidity: ≤99% (relative humidity)

◆ Seismic resistance: Earthquake intensity 8 degrees, ground horizontal acceleration 0.3g

◆Ground vertical acceleration of 0.159, simultaneously acting on three continuous sine waves

◆Safety factor 1.67